/* ============================
   GLOBAL (SAFE FOR BOTH PAGES)
============================ */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    width: 0%;
    background: #007bff;
    z-index: 9999;
    transition: width 0.1s linear;
}

.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 10000;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 10px;
}

/* ============================
   PROJECT PAGE ONLY
============================ */
body.project-page {
    font-family: "Inter", sans-serif;
    background: #fafafa;
    color: #222;
}

/* GRID LAYOUT */
.project-page .project-page {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 3rem;
    max-width: 1100px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
    align-items: flex-start;
}

/* TOC */
.project-page .project-toc {
    position: sticky;
    top: 2rem;
    background: #fff;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.project-page .project-toc h3 {
    margin-bottom: 1rem;
    font-size: 1rem;
    opacity: 0.7;
}

.project-page .project-toc ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.project-page .project-toc a {
    text-decoration: none;
    color: #007bff;
    font-size: 0.95rem;
    transition: opacity 0.2s ease;
}

.project-page .project-toc a:hover {
    opacity: 0.7;
}

.project-page .project-toc a.active-toc {
    font-weight: 600;
    color: #0056c7;
}

/* MAIN CONTENT */
.project-page .project-main {
    max-width: 700px;
    margin: 0 auto;
}

.project-page .back-link {
    display: inline-block;
    margin-bottom: 2rem;
    text-decoration: none;
    color: #007bff;
    font-weight: 500;
    transition: opacity 0.2s ease;
}

.project-page .back-link:hover {
    opacity: 0.7;
}

/* HEADER */
.project-page .project-header h1 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
}

.project-page .project-subtitle {
    font-size: 1rem;
    opacity: 0.7;
    margin-bottom: 1.5rem;
}

.project-page .project-hero {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 2.5rem;
}

/* CONTENT */
.project-page .project-content h2 {
    margin-top: 2.5rem;
    margin-bottom: 0.8rem;
    font-size: 1.5rem;
}

.project-page .project-content p {
    margin-bottom: 1.2rem;
    color: #444;
}

/* IMAGES */
.project-page .project-image {
    width: 100%;
    border-radius: 10px;
    margin: 1.5rem 0;
}

/* SCROLL REVEAL */
.project-page .reveal-section {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.project-page .reveal-section.visible {
    opacity: 1;
    transform: translateY(0);
}